Patents by Inventor Samuel Gjorven

Samuel Gjorven has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for belling plastic pipe
    Patent number: 8709318
    Abstract: An improved pipe belling process is shown which features a mandrel having a specially designed backup or forming collar. The backup collar has an outer contact surface which forms an undulating pattern when viewed in cross section. The undulating surface reduces the contact area between the outer contact surface of the collar and the lip region of a plastic pipe being belled, thereby lowering the coefficient of friction that exists between the pipe lip region and the collar.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: April 29, 2014
    Assignee: S & B Technical Products, Inc.
    Inventors: Guillermo Monteil, Samuel Gjorven
  • Method and Apparatus for Belling Plastic Pipe
    Publication number: 20110156312
    Abstract: An improved pipe belling process is shown which features a mandrel having a specially designed backup or forming collar. The backup collar has an outer contact surface which forms an undulating pattern when viewed in cross section. The undulating surface reduces the contact area between the outer contact surface of the collar and the lip region of a plastic pipe being belled, thereby lowering the coefficient of friction that exists between the pipe lip region and the collar.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 30, 2011
    Applicant: S & B Technical Products, Inc.
    Inventors: Guillermo Monteil, Samuel Gjorven